Created by Peder Norrby of Trapcode, Vortex.A is his personal experiment with fluid dynamics: how liquids and gases behave - a classically difficult problem in physics/maths. Instead of adopting the available solutions for specific cases, Peder has been trying out his own approach and as a result making some pretty promising animations. The app visualizes the flow by emitting particles where you touch the screen (multi-touch works) and the fluid itself is also affected by touch. The lines are so called "pathlines" that trace the particles' paths over time.
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